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Fluorapatite
Fluorapatite

Goethite
Goethite



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Fluorapatite
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Goethite

Fluorapatite and Goethite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.1-3.25
Uneven
Indistinct
5
Ca 5(PO 4) 3FAnthony et al , Handbook of mineralogy (2001)
 
-
HCl soluble
-
4.27-4.29
Uneven
Perfect {010}
5-5.5
FeO(OH)Arthur Thomas , Gemstones (2009)

Fluorapatite and Goethite Chemical Formula

While comparing Fluorapatite and Goethite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Fluorapatite and Goethite chemical formula.

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Fluorapatite and Goethite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Fluorapatite and Goethite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Fluorapatite Vs Goethite during the identification of gemstone. Specific gravity of Fluorapatite is whereas that of Goethite is .